This paper is a presentation by Dr. Ir. Guy Apollinaire MENSAH, Research Director of CAMES, Director of CPTT/UAC, Researcher-Teacher at INRAB, UAC, UNA and UP. This presentation focuses on the ethics and scientific integrity of Plagiarism and Autoplagiarism. Nowadays there is a module dedicated to plagiarism and autoplagiarism in the courses and training courses for students, researchers and teacher-researchers on the methodology for writing scientific writings both in Benin and in other countries of West Africa.